Free Shipping Offers are for Standard Ground Delivery Service and are only valid for shipping addresses within the 48 contiguous United States. Truck freight and oversize charges still apply unless otherwise noted, and can only be shipped to the lower 48 States. Rough Country items are not included in Free Shipping offers. Tires and Wheel and Tire Kits do not qualify for free shipping.

Shipping to Alaska and Hawaii will require an additional charge.

Certain vendors have shipping restrictions that require us to collect a handling fee for the part. You'll see it on the item page as a Vendor Handling fee, and it will show up in the cart below the item(s) you're ordering.

A leaking part on your JL can mean that you are unable to keep up with your friends and you may have to check out of the race. Oh no! This is not good, but if you find yourself in a position where you have a leaky part or you simply want to make sure you are never in this situation, turn to Extreme Terrain. We offer a wide range of products to keep your Jeep JLs engine running smoothly and soundly. We carry a full lineup of 2018-2019 JL parts to ensure your components are sealed tight. When you browse our website, you will find products such as timing cover gaskets, manifold gaskets, neck seals, replacement inner seals, and more. Don’t let a leak ruin your day and check out our awesome prices and fast shipping now.

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Word On The Trail

My experience with Extreme Terrain has been outstanding. I have been able to find everything I want on their website and more! I have used other offroad websites and so far this one is my favorite one.

Meet Our Team

Ryan H, 1998 Jeep Wrangler TJSocial MarketingI’ve always been into cars of all kinds but I really fell in love with my Jeep. My Jeep was my first vehicle, and first and only Jeep so far but I know there will be others. The fact that there is nothing on the road that it can be confused with is what drew me to it. The sense of community and the ...